Nice little singletrack. There are a few different paths here, one of which is part of a GR-route (look for the white & red mark). When coming from the south, after the 'dark forest' bit (first straight bit), go slightly left and then right. There is a clean narrow singletrack. After the 2nd or 3rd tree on the left, a track splits off to the left, follow it and go right after 10/20m and you will now be on a short winding rooty singletrack between the trees. Fun bit. The north side of this track is narrow and lined with barbed wire so take care.